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I bought a pair of these a couple of years ago after I saw them demonstrated at an exhibition.

They've been languishing unused in the workshop ever since.... until today, when I was surprised to find that they do not "lock" in any reasonable sense of the word that I understand - despite what I *thought* I saw at the exhibition.

After spending an age searching on the Knipex web site, YouTube, and the internet generally I can find virtually nothing on this particular item at all.

Has anybody else out there got a pair and if so do they "lock"?

Lock that is the manner of a pair of Mole Grips?

If so then what I thought I saw at the exhibition was correct and I have a faulty pair.

If not then I have completely misunderstood how they are supposed to work.

I believe the 'self locking' just refers to the self sizing of the jaws and the mechanism. From the looks of it, the linkage means only one hand (with constant force) is needed to 'lock' the pliers in place on a pipe/nut.

Levelling ground floor [repost] posted by adibell.
[reposted here as it seems much more active]
Hi,
I’m not looking to tile the floor, but feel this forum has some really smart and helpful people...
Levelling ground floor [repost]

Planning a build, advice on trays etc posted by Martysmarty.
Hi guys. Planning my first bathroom build and just got a few questions.
Looking for input on shower trays and enclosures. I have been looking at...
Planning a build, advice on trays etc

Smelly shower trap posted by Bettyboo.
Hi All
My shower tray and plumbing was installed 5 years ago and has been fine up until last summer when it started to smell. We have been careful to clean trap parts weekly to remove hair etc but...

Smelly hot water . Why? posted by Chris Pickering.
Just recently when I run the hot water it has started to smell why is this and how do I go about sorting it.
We have an old baxi boiler with a water tank in the airing cupboard.

Vent bathroom ceiling fan through rosemary tiles posted by scoz.
I need to vent an inline bathroom fan through my roof which has rosemary tiles on and no sarking underneath the tiles. Never done this before so would like your advice to get it right first time....